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Mean Well NLDD-350H DC/DC LED Driver CC 350mA - Step-down

Name: Mean Well NLDD-350H DC/DC LED Driver CC 350mA - Step-down
Brand: Mean Well
SKU: NLDD-350H
Price: 5.34 USD
Availability: InStock

constant currentstep downhigh efficiency up to 97%IP67pin style

SKU NLDD-350H

$5.34 USD

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Available to order

Overview

NLDD-350H is the model of this series: typical efficiency 96% at full load and 36VDC/48VDC input.

NLDD-H series is a 60W DC/DC LED driver featuring constant current output. NLDD-H operates from 10~56VDC and offers models with different rated current ranging between 350mA and 1400mA. With the high efficiency up to 96%, The 94V-0 flame retardant plastic case the fully-potted silicone to enhance the heat dissipation allows this series to fit for classⅢ or DC bus lighting application.

Features

DC/DC step-down converter
Constant current output: 350mA to 1400mA
Wide input voltage: 10 ~ 56VDC(59VDC Max.)
Wide output LED forward voltage: 6 ~ 52VDC
High efficiency up to 96%
Comply with BS EN/EN61347 and BS EN/EN55015 regulation
For class Ⅲ application(SELV)
Built-in PWM and remote ON/OFF control
Protections: Short circuit / Over temperature
Cooling by free air convection
Fully encapsulated and compact site
Suitable for driving illumination LED
3 years warranty

Specifications

NLDD-350HSpecifications from the official datasheet (2024-10-16 edition)

OUTPUT

CURRENT RANGE: 350mA
VOLTAGE RANGE^Note.4: 6 ~ 52VDC
CURRENT ACCURACY (Typ.): ±5% at 48VDC input
RIPPLE & NOISE(max.)^Note.2: 150mVp-p
SWITCHING FREQENCY: 200KHz

INPUT

VOLTAGE RANGE: 10 ~ 56VDC (59VDC Max.)
EFFICIENCY (max.): 96% at full load and 36VDC/48VDC input
DC CURRENT Full load^Note.3: 350mA
DC CURRENT No load: 5mA

PWM DIMMING & ON/OFF CONTROL

REMOTE ON/OFF: Leave open if not use Power ON with dimming: DIM ~ -Vin >2.5 ~ 5VDC or open circuit Power OFF : DIM ~ -Vin < 0.8VDC or short
PWM FREQUENCY: 100 ~ 1KHz
QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(max.): 2mA at PWM dimming OFF at 48VDC input

PROTECTION

SHORT CIRCUIT: Regulated at rated current Protection type: Can be continued, recovers automatically after fault condition is removed
OVER TEMPERATURE: Tj 165℃ typically(IC1) detect on main control IC Protection type : Shut down, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.: -40 ~ + 50℃(Refer to derating curve)
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03% / ℃
VIBRATION: 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
OPERATING CASE TEMP. (max.): 90℃
SOLDERING TEMPERATURE: Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.)

EMC

SAFETY STANDARDS: LVD BS EN/EN61347-1, BS EN/EN61347-2-13;IEC61347 and EAC TP TC 004 approved
EMC EMISSION: Compliance to BS EN/EN55015, BS EN/EN61547
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,6,8, light industry level, EAC TP TC 020

OTHERS

MTBF: 29984.3K hrs min. Telcordia SR-332 (Bellcore) 2881.6Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 32.1*20.5*12.5mm or 1.26"*0.8"*0.49" inch (L*W*H)
WEIGHT: NLDD-H:15.6g ; NLDD-HW:18g (Please refer to Page 6 for packing)
POTTING MATERIAL: Expoxy(UL94-V0)

Test conditions and notes7

1.All parameters are specified at normal input(48VDC), rated load, 25℃ 70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf capacitor.
3.Test condition: 48VDC input.
4.Output voltage will always step down by 4 volts from input DC voltage.
5.The output of NLDD-H should not be connected to the input of the same unit or output from other sources.
6.The power supply is regarded as a part of the components in the system, and the final EMI test needs to be tested with the final device. If an additional EMI filter circuit is required to meet the electromagnetic compatibility requirements, please refer to the EMC test report for details. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
7.Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com

Technical drawings

NLDD-350H Mechanical Specification — Mechanical Specification

NLDD-350H Derating Curve — Derating Curve

NLDD-350H PWM Dimming Control — PWM Dimming Control

NLDD-350H Efficiency VS Output Voltage — Efficiency VS Output Voltage

Typical applications

DC battery source lighting
Portable lighting
Commercial lighting
DC 48V Track lighting
DC 24V landscape lighting

Downloads

Certificates3

Mean Well NLDD-H-EMC Certificate PDF Download

Mean Well NLDD-CE-dec Certificate PDF Download

Mean Well NLDD-UK-dec Certificate PDF Download

Test reports1

Mean Well NLDD-350H Test Report PDF Download

FAQ

Can I use the NLDD-350H to drive a low-current LED downlight module?

Yes, if the LED downlight is designed for constant current operation at 350mA. This is a 60W step-down constant current driver, so it fits LED loads that need regulated current rather than a constant voltage supply.

Is the NLDD-350H suitable for signage modules or small LED arrays?

It can be a fit for signage modules or small LED arrays when the LEDs are intended to run from a 350mA constant current source. Because it is a step-down driver with a 10-56VDC input and 6-52VDC output range, the LED load has to stay within that operating window.

Can this driver be used in compact lighting assemblies where space is limited?

The NLDD-350H is very compact at 32.1 × 20.5 × 12.5 mm and weighs 0.0156 kg, which helps in small integrated lighting products. It is still a 60W constant current driver, so the electrical match matters as much as the physical size.

How do I know if my LED load is compatible with the NLDD-350H?

This model is for constant current LED loads, not constant voltage LED products. Its constant current output is 350mA, and the output voltage range is 6-52VDC. The number of LEDs it can run depends on the forward voltage of each LED in the load rather than on a fixed LED count.

How does the NLDD-350H compare with other NLDD H-series drivers?

Within this 60W series, the listed siblings are NLDD-350HW at 350mA with 6-52VDC, NLDD-500H and NLDD-500HW at 500mA with 6-52VDC, NLDD-700H and NLDD-700HW at 700mA with 6-52VDC, NLDD-1050H and NLDD-1050HW at 1050mA with 6-52VDC, and NLDD-1200H, NLDD-1200HW, NLDD-1400H, and NLDD-1400HW with 6-46VDC at 1200mA or 1400mA. The NLDD-350H is the pin-style 350mA option in that family.

Payment & Security

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Model	Power	Voltage	Current	IP Rating
Mean Well HLG-120H-C350A Power Supply 150.5W 350mA - Adjustable	150.5W	430V	0.35A	IP65	View
Mean Well APC-16-350 Power Supply 16W 350mA	16.8W	48V	0.35A	IP42	View
Mean Well HLG-120H-C350B Power Supply 150.5W 350mA - Dimmable	150.5W	430V	0.35A	IP65	View
Mean Well HLG-120H-C350AB Power Supply 150.5W 350mA - Adjustable and Dimmable	150.5W	430V	0.35A	IP65	View
LTECH DALI-10-350-700-F1P1 10W 350mA ~ 700mA CC Dali LED Driver - Selectable Output	10W	26V	0.35A	Indoor	View
Mean Well ODLC-45A-350 Power Supply 45W 350mA (Auxiliary DC output)	33.25W	95V	0.35A	IP67	View
Mean Well ODLC-45-350DA Power Supply 45W 350mA, DALI	33.25W	95V	0.35A	IP67	View
Mean Well ODLC-45-350 Power Supply 45W 350mA, Dimmable	33.25W	95V	0.35A	IP67	View
LTECH SE-12-350-700-W1M 12W 350~700mA CC DMX LED Driver - Selectable Output	12W	35V	0.35A	Indoor	View
LTECH SE-10-350-700-W1M 10W 350~700mA CC DMX LED Driver - Selectable Output	10W	20V	0.35A	Indoor	View
Ltech TD-10-350-700-E1P1 10W 350mA ~ 700mA CC Triac LED Driver - Selectable Output	15W	28V	0.35A	Indoor	View
Mean Well XLG-20-L 18.9W 350mA 32.4-54V Constant Current LED Driver	18.9W	60V	350 Milliampere	IP67	View
Mean Well PLM-25-350, 350mA Constant Current with PFC - Terminal Block	25.2W	80V	0.35A	IP20	View
Mean Well PLM-12E-350, 350mA Constant Current with PFC - Terminal Block	12.6W	42V	0.35A	IP20	View
Mean Well PLM-12-350, 350mA Constant Current with PFC - Terminal Block	12.6W	42V	0.35A	IP20	View
Mean Well PLD-25-350 Power Supply 25W 350mA	20.3W	58V	0.35A	IP42	View
Mean Well PLD-16-350A Power Supply 16W 350mA	16.8W	48V	0.35A	IP42	View
Mean Well PCD-25-350A Power Supply 16W 350mA	20.3W	58V	0.35A	IP42	View
Mean Well PCD-16-350A Power Supply 16W 350mA	16.8W	48V	0.35A	IP42	View
Mean Well NLDD-350HW DC/DC LED Driver CC 350mA - Step-down Wire Type	60W	52V	0.35A	IP20	View
Mean Well LPHC-18-350 AC-DC Single output LED driver Constant Current	16.8W	48V	0.35A	IP67	View
Mean Well LPC-20-350 Power Supply 20W 350mA	16.8W	48V	0.35A	IP67	View
Mean Well LPC-100-350 Power Supply100W 350mA	100.1W	286V	0.35A	IP67	View
Mean Well LDH-45B-350WDA DC/DC LED Driver CC 350mA - Step-up	44.1W	126V	0.35A	IP67	View
Mean Well LDH-45B-350W DC/DC LED Driver CC 350mA - Step-up	44.1W	126V	0.35A	IP67	View
Mean Well LDH-45B-350DA DC/DC LED Driver CC 350mA - Step-up	44.1W	126V	0.35A	IP67	View
Mean Well LDH-45B-350 DC/DC LED Driver CC 350mA - Step-up	44.1W	126V	0.35A	IP67	View
Mean Well LDH-45A-350WDA DC/DC LED Driver CC 350mA - Step-up	30.1W	86V	0.35A	IP67	View
Mean Well LDH-45A-350W DC/DC LED Driver CC 350mA - Step-up	30.1W	86V	0.35A	IP67	View
Mean Well LDH-45A-350DA DC/DC LED Driver CC 350mA - Step-up	30.1W	86V	0.35A	IP67	View
Mean Well LDH-45A-350 DC/DC LED Driver CC 350mA - Step-up	30.1W	86V	0.35A	IP67	View
Mean Well LDH DC/DC LED Driver CC 350mA - Step-up - with Wire	25.2W	72V	0.35A	IP20	View
Mean Well LDH DC/DC LED Driver CC 350mA - Step-up	25.2W	72V	0.35A	IP20	View
Mean Well LDDS-350HWB DC/DC LED Driver CC 350mA - Step-down Wire Type - 3 in 1 Dimmable	45W	45V	0.35A	IP20	View
Mean Well LDDS-350HW DC/DC LED Driver CC 350mA - Step-down Wire Type	45W	45V	0.35A	IP20	View
Mean Well LDD-350LW DC/DC LED Driver CC 350mA - Step-down	11.2W	32V	350 Milliampere	IP67	View
Mean Well LDD-350HW DC/DC LED Driver CC 350mA - Step-down	18.2W	52V	350 Milliampere	IP67	View
Mean Well LDB-350LW DC/DC LED Driver CC 350mA - Buck-boost	14W	40V	350 Milliampere	IP67	View
Mean Well LDB-350L DC/DC LED Driver CC 350mA - Buck-boost	14W	40V	350 Milliampere	IP67	View
Mean Well HVGC-150-350B Power Supply 150W 350mA - Dimmable	149.8W	428V	0.35A	IP67	View
Mean Well HVGC-100-350A Power Supply 75W 350mA - Adjustable	99.75W	285V	0.35A	IP65	View
Mean Well HLG-80H-C350B Power Supply 89.95W 350mA - Dimmable	89.95W	257V	0.35A	IP65	View
Mean Well HLG-80H-C350AB Power Supply 89.95W 350mA - Adjustable and Dimmable	89.95W	257V	0.35A	IP65	View
Mean Well HLG-80H-C350A Power Supply 89.95W 350mA - Adjustable	89.95W	257V	0.35A	IP65	View
Mean Well HLG-60H-C350B Power Supply 70W 350mA - Dimmable	70W	200V	0.35A	IP65	View
Mean Well HLG-60H-C350AB Power Supply 70W 350mA - Adjustable and Dimmable	70W	200V	0.35A	IP65	View
Mean Well HLG-60H-C350A Power Supply 70W 350mA - Adjustable	70W	200V	0.35A	IP65	View
Mean Well ELG-75-C350DA Power Supply 75W 350mA - DALI	74.9W	224V	0.35A	IP67	View
Mean Well ELG-75-C350B Power Supply 75W 350mA - Dimmable	74.9W	224V	0.35A	IP67	View

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